> 1) The HFE is irrelevant. Either the voltage is high enough to turn it > on, or not. with fets you can still get a gate voltage that is high enough to let the fet conduct some current between source and drain but not high enough to allow your loads full current. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist